One-of-a-Kind Baby Names Stand Out

Sibling Names: The Ultimate Guide

100+ Best Boy Names Below the Top 1000

Unusual British Baby Names: Rare and Refined

Rare Boys’ Names of the 1940s

Names Inspired by Tarot Cards

O Boy! The Best Boy Names Ending in O

Photography Names Are Picture-Perfect

Poshest Names in Britain: Crunching the Numbers

15 Stellar Astronomy Baby Names

100+ Best Boy Names Ending in a Vowel

Short, Uncommon & Interesting

Help name my friends baby!

Top 25 Boys names of the day (Top 25 BNOTD)

Cosmo

The name Cosmo peaked for girls at #13973 in 2022. Cosmo is occasionally used for boys in 2024.

The name Cosmo is a boy's name of Greek origin meaning "order, beauty, universe".

Greek Names

Greek Names for Boys

5 Letter Boy Names

Names Ending in O for Boys

Names That Mean Beauty

Two Syllable Names for Boys

Names that Peaked in 1913

Boy Dog Names That Start With C

Boy Cat Names That Start With C

Dog Names That Start With C

Cat Names That Start With C

Animal Names for Boys

Names That Mean Universe

Greek Names that Start With C

With a touch of celestial power, a hint of clunky charm, and the totally cool -o ending, Cosmo may well be finally shaking itself free of both the Seinfeld association (which made it a punchline of a joke) and the cartoon fairy association from The Fairly OddParents. In fact, it is in the Top 1000 in the UK and a favorite on Nameberry. 
 
An Italian variant of Cosimo or Cosmas, the name Cosmo has its roots in Greek, where it means "order, universe, beauty." It was first introduced to Britain when an 18th century Scottish Duke used it for his son, in honor of his friend, Cosimo III de' Medici. 
 
Long neglected as it has been in the US, some parents are coming round to the idea of Cosmo again, with nearly 100 boys receiving the name in a recent year. Influential celebrity couple Scarlett Johansson and Colin Jost chose it for their son, born in 2021, while YouTubers Life with Beans used it in 2020, which may well help to change how people view Cosmo. 
 In literature, Baron Cosmo Bradwardine is a character in Sir Walter Scott's novel Waverley and Cosmo Topper is the befuddled banker in Thorne Smith's humorous novel Topper. In modern times Cosmo has become the short form for Cosmopolitan – both the magazine and the cocktail. And for those wishing to honor a medic in the family, Cosmo is also the name of the Arabian-born patron saint of doctors.
 
With its cosmic meaning and creative feel, Cosmo may also appeal to those looking for alternatives to Atlas, or for those who like Evren.

Boy Names Like Oscar

Black Dog Names

Names All Your Friends Will Think Are Cool

Black Cat Names

Fancy Boy Names

Attitude Names for Boys

Cool Names with a Strong O

Names That Mean Earth

Offbeat Baby Names

Catholic Baby Names (with Meanings and Popularity)

Old-Fashioned Cat Names

Cat Names

Kindercore names

Cool Classic Boy Names Below the Top 1000 

Unusual Boy Names

Nameberry's Favorite Boy Names

European Names for Girls and Boys

Boy Names Ending in O

October Baby Names

Nameberry's Favorite Names

Pug Names

Old-Fashioned Boy Names

Old-Fashioned Names

Rodent Names

Unique, Rare, and Uncommon Boy Names (with Meanings and Origins)

Creative Dog Names

Nameberry's Top Favorite Names

Science and Technology Names

Fancy Names

International Baby Boy Names

Fastest-Rising Names on Nameberry

Movie Character Names

Dog Names

Posh Baby Names

Weird Celebrity Baby Names

Green Names for Dogs

Nameberry's Favorite Vintage Names

Unique Dog Names

Ancient Greek Names

Doberman Names

Telegraph Baby Names 

Ancient Boy Names

Dark Academia Names

Boho Boy Names

Fairy and Elf Names

Unique Baby Names Ending In O

Sparkling Summer Baby Names

Influencer Baby Names

Sugary Sweet Names for Boys

Nerdy Boy Names: Geek Chic Cool

Hipster British Boy Names

Nameberry's Favorite Celestial Names

Hipster Names for Boys and Girls

Big Dog Names

Names That Mean Beautiful

Quirky and Vibrant Names for Boys

Celebrity Baby Boy Names

Unusual Baby Names

Unique Celebrity Baby Names

European Boy Names

Science Cat Names

Greek

Nameberry

Unique

England

Dogs

Cats

The name Cosmo is currently ranked #970 in U.S. births. and peaked for boys at #933 in 1913. It is currently rising in popularity. The name is most popular in COSMO, COSMO, and COSMO. Cosmo is occasionally used for girls in 2022.

Cosimo

Cosmo

The name Cosmo in Nameberry Blog Posts

The name Cosmo in Nameberry Forums

More Lists containing Cosmo

Advanced Search

Advanced Search

Find your type.

The Nameberry App Is Live

The Nameberry App Is Live